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Papers
20 resultsShowing papers similar to Multiple Pollutants from Crop and Livestock Production in the Yangtze River: Status and Challenges
ClearThe Plastic Age: River Pollution in China from Crop Production and Urbanization
Researchers developed an integrated model estimating that 716 kilotons of plastics entered Chinese rivers annually from crop production mulching, sewage systems, and mismanaged solid waste, with agricultural plastic films being a major but often overlooked source.
Distribution, characteristics, and research status of microplastics in the trunk stream and main lakes of the Yangtze River: A review
This review synthesizes research on microplastic distribution, characteristics, and sources in the Yangtze River trunk stream and its major lakes, identifying industrial discharges, urban runoff, and agricultural films as dominant pollution sources affecting one of the world's most populated river basins.
Occurrence, distribution and affecting factors of microplastics in agricultural soils along the lower reaches of Yangtze River, China
Researchers conducted a large-scale field survey of microplastics in agricultural soils along the lower Yangtze River, finding widespread contamination that correlated with proximity to plastic-mulching farmland and irrigation with treated wastewater.
Microplastic pollution in the Yangtze River Basin: Heterogeneity of abundances and characteristics in different environments
Researchers compiled microplastic data from 624 sampling sites across the Yangtze River Basin covering water, sediment, soil, and biota, revealing heterogeneous contamination patterns driven by local land use, population density, and wastewater infrastructure.
Selected legacy and emerging organic contaminants in sediments of China's Yangtze – the world's third longest river: Response to anthropogenic activities
Researchers conducted the first extensive survey of legacy and emerging organic contaminants in sediments along the entire Yangtze River. They found that pharmaceuticals and personal care products were the dominant contaminants, followed by polychlorinated biphenyls, neonicotinoid pesticides, and polybrominated diphenyl ethers. The study links contamination levels to anthropogenic activities such as urbanization, agriculture, and industrial discharge along different stretches of the river.
Water Pollution and Agriculture: Multi-pollutant Perspectives
This review examines agriculture as a multi-pollutant source of water contamination, identifying large spatial and temporal variation in nutrient, pesticide, plastic, and pathogen loads and arguing that agricultural water management strategies must account for these simultaneous pollutant interactions.
Evaluation of nitrate pollution sources in surface water across the typical rural-urban interface: a case study of Wen-Rui Tang River, China
Researchers identified the main sources of nitrate pollution in a rural-urban Chinese river, finding that human sewage and agricultural runoff were the primary contributors. While focused on nitrogen pollution, the study illustrates how mixed land use creates complex water quality challenges in rivers that also carry microplastics.
Water Quality Evaluation, Spatial Distribution Characteristics, and Source Analysis of Pollutants in Wanquan River, China
This paper is not about microplastics — it assesses water quality in a Chinese river basin, finding that agricultural runoff and domestic sewage are the main pollution sources, without examining plastic contamination.
A Comprehensive Analysis of Agricultural Non-Point Source Pollution in China: Current Status, Risk Assessment and Management Strategies
This review analyzes agricultural pollution in China from fertilizers, pesticides, plastic films, livestock, and crop waste, and finds widespread nitrogen, phosphorus, and heavy metal contamination across provinces. Microplastic pollution from agricultural plastic films was assessed as low risk, but heavy metals like arsenic and cadmium pose serious cancer risks to adults and children. The study recommends strategies focused on reducing pollution at the source to protect both farmland and human health.
Environmental fate of microplastics in the world's third-largest river: Basin-wide investigation and microplastic community analysis
Researchers conducted a basin-wide investigation of microplastics throughout the entire Yangtze River system, sampling water, sediment, and soil. The study found microplastics in all samples with abundance increasing from upstream to downstream, driven by both geographical and human factors, with major cities at the middle and lower reaches identified as key pollution nodes.
How the Yangtze River transports microplastic to the east China sea
Researchers used interpolation and input-output modeling to estimate how the Yangtze River transports microplastics seasonally from land to the East China Sea, finding that MP loads varied substantially by month with peak transport during high-flow periods. Tributary contributions and agricultural runoff were identified as major factors controlling MP flux to the estuary.
[Microplastic Pollution Status and Ecological Risk Evaluation in Weihe River].
This Chinese study characterized microplastic abundance, shapes, sizes, colors, and polymer types in the Weihe River in northwest China. The findings document significant microplastic contamination in a major regional river that drains one of China's most densely populated agricultural areas, raising concerns about both ecosystem and human health.
Macroplastic and microplastic contamination assessment of a tropical river (Saigon River, Vietnam) transversed by a developing megacity
Researchers assessed macroplastic and microplastic contamination in a tropical river in Vietnam, finding elevated pollution levels linked to urban and agricultural land use along the waterway.
Microplastic pollution in the Yangtze River: Characterization, influencing factors, and scenario-based predictions using machine learning method
Microplastic pollution in the Yangtze River was characterized across multiple sampling sites, documenting spatial patterns in particle abundance, polymer types, and size distributions. As one of the world's largest rivers, the Yangtze's microplastic burden has major implications for plastic delivery to the Pacific Ocean.
Microplastic contamination in the yangtze river: Evaluating pollution levels and the need for standardized research methods
This review synthesizes data from 21 studies to assess microplastic pollution levels across the Yangtze River Basin, characterizing particles by abundance, size, shape, and polymer type while applying strict QA/QC protocols and highlighting the critical need for standardized research methods.
Small microplastic particles dominate Yangtze River particulate pollution
Annual field monitoring of microplastic fluxes in the Yangtze River estuary found that small particles dominated the plastic load and that abundance was spatially and temporally heterogeneous, providing the first systematic estimate of the river's annual plastic contribution to the ocean.
Microplastics in Surface Water in the Yangtze River, China: Basin-Wide Observation, Multiple Ecological Risk Assessment and Sustainability
Researchers conducted a three-year survey of microplastic pollution across the entire Yangtze River Basin in China and found an average of nearly 8,800 microplastic particles per cubic meter of surface water. Tiny particles smaller than 0.3 millimeters made up over 92% of what was found and drove the variation in pollution levels between locations. The study highlights that previous research may have significantly underestimated microplastic contamination by not capturing these smallest particles.
Extent and risks of microplastic pollution in the Yangtze River. State of the science
This review analyzed data from 21 studies on microplastic pollution in the Yangtze River, one of the most polluted rivers in the world. Researchers found that many existing studies had quality issues that make it difficult to accurately assess the true risks. The study calls for higher-quality, standardized research methods to properly evaluate how microplastics are affecting one of Asia's most important waterways.
Current practices and future perspectives of microplastic pollution in freshwater ecosystems in China
This review summarizes current knowledge and future research priorities for microplastic pollution in China's freshwater ecosystems, including rivers, lakes, and wetlands, identifying both urban and agricultural sources as major contributors. The authors call for nationally coordinated monitoring, standardized methods, and stronger regulatory frameworks to address the growing microplastic burden in Chinese freshwater systems.
Small microplastic particles dominate Yangtze River particulate pollution
Researchers conducted annual monitoring of plastic particle fluxes in the Yangtze River estuary, finding that small microplastic particles dominate particulate pollution and that their distribution varies significantly by location and season, with important implications for estimating riverine plastic inputs to the sea.